TEMPE, Ariz. -- A blood test Thursday revealed that Arizona Cardinals wide receiver John Brown carries the sickle-cell trait and has been listed as doubtful for Sundays game, coach Bruce Arians said Friday.Brown experienced leg pain before Monday nights win over the New York Jets and was diagnosed with sore hamstrings after the game. But an MRI this week didnt reveal any issues with his hamstrings, which led to the blood test.Were investigating on how to help him get better as fast as possible, Arians said.According to the Centers for Disease Control and Prevention, sickle-cell trait is the result of one inherited sickle-cell gene and one normal gene. Those with the sickle-cell trait usually dont exhibit symptoms of sickle-cell disease. In rare cases, however, people with SCT might experience complications of SCD, such as pain crises.According to the CDCs website, those with sickle-cell trait are more likely to experience muscle breakdown when doing intense exercise than those who dont have the trait.Brown was plagued with hamstring issues for the last 2? months of last season, which Arians said is likely related to the sickle-cell trait diagnosis.Arians thinks Brown is relieved to discover a potential reason for this pain.I think hes very happy that he found out why his legs are hurting so bad, Arians said. Custom Mariners Jerseys . - Blake Griffin had 30 points and 12 rebounds, J. Custom Mariners Jersey China . -- The Missouri Tigers might not have a roster full of superstars. http://www.custommarinersjersey.com/ . -- Chicago Bears cornerback Tim Jennings was selected Monday to his second straight Pro Bowl, while guard Kyle Long made it after a solid rookie season. Custom Mariners T-shirts . The 18th player to shoot 60 on the tour, Jamieson settled for par on the final hole when his 15-foot birdie chip grazed the edge of the hole and stayed out. After opening with rounds of 66 and 73 to make the cut by a stroke, he had 11 birdies in the bogey-free round. Edgar Martinez Jersey Large . -- Golden State Warriors coach Mark Jackson asked his players a simple question during Fridays morning shootaround: How many of them had ever been on a team 14 games over . ORLANDO, Fla. -- David Duval and stepson Nick Karavites shot a 10-under 62 on Sunday to win the PNC Father/Son Challenge by a stroke.Duval and Karavites finished at 21-under 123 in the scramble event at Grande Lakes to hold off 2013 winners Stewart and Connor Cink, newcomers Retief and Leo Goosen, and Fred and Taylor Funk.This is as good as anything, Duval said. It truly is. I know its not winning The Players or something like that, but this is what the progression of life is. To be able to come out in a professional event and win and have the whole family here, Ill never forget it.I came home and talked with Susan my wife about six weeks ago and said, `You know if I play like Im playing and Nick plays like hes playing, we have a chance.Team Duval earned $200,000. They birdied Nos. 1, 2, 3, 5, 6, 7 and 9 to make the turn at 7 under, and added birdies at 11, 13 and 14.Being here with my mom, my brothers and my stepdad, it was amazing, Karavites said. We were playing so good and it didnt seem like too much pressure.dddddddddddd Just being with David out here, Ive been looking forward to this for a long time.The Goosens and Cinks shot 61, and the Funks had a 62. Team Goosen missed 10-foot birdie putts on 18 that could have tied them for the lead. Retief saw nothing but positives, though, from 13-year-old Leo.Hes learning a lot how to manage his game this week, how to think around a course, he said. Hes only going to get stronger. He stayed positive.Event newcomers John and Little John Daly shot 63 to tie for ninth at 17 under.The way L.J. played this week, Im so proud of him, Daly said. Hes been clutch all week. Its been a great week for me. The progress for him to see it under the gun, the way he performed, it was incredible.Jack Nicklaus and Jack II had a 68 to finish at 5 under.We were a little better than yesterday but basically its what (Jackie) did, Nicklaus said. ' ' '